WO2006016980A3 - Method and apparatus capable of interference cancellation - Google Patents

Method and apparatus capable of interference cancellation Download PDF

Info

Publication number
WO2006016980A3
WO2006016980A3 PCT/US2005/021928 US2005021928W WO2006016980A3 WO 2006016980 A3 WO2006016980 A3 WO 2006016980A3 US 2005021928 W US2005021928 W US 2005021928W WO 2006016980 A3 WO2006016980 A3 WO 2006016980A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrical signal
interference cancellation
receiving
apparatus capable
antenna
Prior art date
Application number
PCT/US2005/021928
Other languages
French (fr)
Other versions
WO2006016980A2 (en
Inventor
Khosro Shamsaifar
Louise C Sengupta
Original Assignee
Paratek Microwave Inc
Khosro Shamsaifar
Louise C Sengupta
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Paratek Microwave Inc, Khosro Shamsaifar, Louise C Sengupta filed Critical Paratek Microwave Inc
Publication of WO2006016980A2 publication Critical patent/WO2006016980A2/en
Publication of WO2006016980A3 publication Critical patent/WO2006016980A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12—Neutralising, balancing, or compensation arrangements
    • H04B1/123—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means
    • H04B1/126—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means having multiple inputs, e.g. auxiliary antenna for receiving interfering signal

Abstract

An embodiment of the present invention provides an apparatus capable of interference cancellation, comprising a first antenna capable of receiving an electrical signal, the electrical signal comprising a main signal component and an interfering signal component; a second antenna capable of receiving the electrical signal and passing it to a tunable delay line, the tunable delay line capable of varying the time delay of said electrical signal; and a combiner capable of receiving the electrical signal from the first antenna and the time delayed electrical signal and combining them so as to cancel the interfering signal component from the electrical signal.
PCT/US2005/021928 2004-07-08 2005-06-20 Method and apparatus capable of interference cancellation WO2006016980A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US58643704P 2004-07-08 2004-07-08
US60/586,437 2004-07-08

Publications (2)

Publication Number Publication Date
WO2006016980A2 WO2006016980A2 (en) 2006-02-16
WO2006016980A3 true WO2006016980A3 (en) 2006-07-20

Family

ID=35839696

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2005/021928 WO2006016980A2 (en) 2004-07-08 2005-06-20 Method and apparatus capable of interference cancellation
PCT/US2005/021778 WO2006016973A2 (en) 2004-07-08 2005-06-21 A feed forward amplifier with multiple cancellation loops capable of reducing intermodulation distortion and receive band noise

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/US2005/021778 WO2006016973A2 (en) 2004-07-08 2005-06-21 A feed forward amplifier with multiple cancellation loops capable of reducing intermodulation distortion and receive band noise

Country Status (2)

Country Link
US (2) US20060009185A1 (en)
WO (2) WO2006016980A2 (en)

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US20050200422A1 (en) * 2001-09-20 2005-09-15 Khosro Shamsaifar Tunable filters having variable bandwidth and variable delay
US7657242B2 (en) * 2004-09-27 2010-02-02 Qualcomm Mems Technologies, Inc. Selectable capacitance circuit
US7653371B2 (en) * 2004-09-27 2010-01-26 Qualcomm Mems Technologies, Inc. Selectable capacitance circuit
WO2007100760A2 (en) * 2006-02-27 2007-09-07 The Penn State Research Foundation Detecting quadrupole resonance signals using high temperature superconducting resonators
WO2007100761A2 (en) * 2006-02-27 2007-09-07 The Penn State Research Foundation Quadrupole resonance using narrowband probes and continuous-wave excitation
US8126402B1 (en) * 2006-12-05 2012-02-28 Nvidia Corporation Transmission line common-mode filter
US8159390B2 (en) * 2007-03-29 2012-04-17 Raytheon Company Temporal CW nuller
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US7876869B1 (en) 2007-05-23 2011-01-25 Hypers, Inc. Wideband digital spectrometer
US7904047B2 (en) * 2007-10-31 2011-03-08 Broadcom Corporation Radio frequency filtering technique with auto calibrated stop-band rejection
US8306480B2 (en) * 2008-01-22 2012-11-06 Texas Instruments Incorporated System and method for transmission interference cancellation in full duplex transceiver
CN103199808B (en) * 2013-02-07 2016-05-04 武汉凡谷电子技术股份有限公司 A kind of intermodulation canceller for passive device
US9425840B2 (en) * 2013-04-26 2016-08-23 Northrop Grumman Systems Corporation Wideband tunable notch cancellation
CN103490734B (en) * 2013-07-26 2016-01-20 江苏科技大学 A kind of device of offsetting resistive feedback power current amplifier input stage thermal noise
CN103700953A (en) * 2013-11-30 2014-04-02 成都天奥信息科技有限公司 Wide-beam dual-mode antenna for satellite phones
US9654983B2 (en) * 2014-04-03 2017-05-16 North Carolina State University Tunable filter employing feedforward cancellation
CN105515606B (en) * 2014-09-24 2018-07-10 南宁富桂精密工业有限公司 Reduction circuit and transmission circuit
JP6128171B2 (en) * 2015-07-09 2017-05-17 栗田工業株式会社 Cooling discharge water recovery method and recovery device
US9800278B2 (en) 2015-09-04 2017-10-24 North Carolina State University Tunable filters, cancellers, and duplexers based on passive mixers
US9847892B2 (en) 2016-01-22 2017-12-19 International Business Machines Corporation Embedded wire feed forward equalization
CN107947755B (en) * 2016-10-11 2021-06-29 康普技术有限责任公司 Energy absorption circuit
US10235987B1 (en) * 2018-02-23 2019-03-19 GM Global Technology Operations LLC Method and apparatus that cancel component noise using feedforward information
EP3565135B8 (en) * 2018-04-30 2022-06-22 Rohde & Schwarz GmbH & Co. KG System and method for inverting a radio channel for broadband signals
CN110729545B (en) * 2018-07-17 2022-03-11 康普技术有限责任公司 Coupler for communication system

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US4280128A (en) * 1980-03-24 1981-07-21 The United States Of America As Represented By The Secretary Of The Army Adaptive steerable null antenna processor
US5260711A (en) * 1993-02-19 1993-11-09 Mmtc, Inc. Difference-in-time-of-arrival direction finders and signal sorters
US6556102B1 (en) * 1999-11-18 2003-04-29 Paratek Microwave, Inc. RF/microwave tunable delay line

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3634702A (en) * 1968-12-20 1972-01-11 Ibm Solid-state delay line
US4280128A (en) * 1980-03-24 1981-07-21 The United States Of America As Represented By The Secretary Of The Army Adaptive steerable null antenna processor
US5260711A (en) * 1993-02-19 1993-11-09 Mmtc, Inc. Difference-in-time-of-arrival direction finders and signal sorters
US6556102B1 (en) * 1999-11-18 2003-04-29 Paratek Microwave, Inc. RF/microwave tunable delay line

Also Published As

Publication number Publication date
US20060009185A1 (en) 2006-01-12
WO2006016973A2 (en) 2006-02-16
US20060009172A1 (en) 2006-01-12
WO2006016980A2 (en) 2006-02-16
WO2006016973A3 (en) 2006-12-14

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